Squeeze film due to a rotating curved disk approaching a fixed plane under the action of a force and moment |
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| Affiliation: | 1. Imperial College, Exhibition Road, London, UK;2. Rolls-Royce Plc, UK;1. Food Science and Technology Programme, Department of Chemistry, National University of Singapore, S14 Level 5, Science Drive 2, 117542, Singapore;2. Kerry Ingredients Asia Pacific, 8 Biomedical Grove, #02-01/04 Neuros, 138665, Singapore;3. Firmenich Asia Pte Ltd., 10 Tuas West Road, 638377, Singapore;4. Silesia Flavours South East Asia Pte Ltd., 41 Science Park Road, The Gemini, Science Park II, 117610, Singapore;5. National University of Singapore (Suzhou) Research Institute, No. 377 Linquan Street, Suzhou Industrial Park, Suzhou, Jiangsu, 215123, China;1. School of Aeronautics and Astronautics, Purdue University, 701 West Stadium Avenue, West Lafayette, IN 47907, USA;2. School of Materials Engineering, Purdue University, 701 West Stadium Avenue, West Lafayette, IN 47907, USA;3. Advanced Photon Source, Argonne National Laboratory, 9700 South Cass Avenue, Argonne, IL 60439, USA |
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| Abstract: | Squeeze film flow of an incompressible viscous fluid between a rotating curved disk and a plane wall at rest is studied theoretically. The rotating curved disk is assumed to be driven under the action of an axial force and moment, and to have arbitrary axi-symmetrical shape. The equations governing the gap between the rotating disk and the wall, and the angular velocity of the rotating disk, are determined and are solved for the case of a parabolic shape. If the disk is made concave, the approaching velocity and the angular velocity of the moving disk become small. This result is opposite to the convex case. |
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